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. 2012 Jan 31;19(4):660–667. doi: 10.1136/amiajnl-2011-000599

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© 2012, Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

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Syntactic tree for ‘Voiding cystourethrogram is normal and I have reviewed it.’ Bold indicates markable nodes, while dashed arcs indicate the syntactic path from anaphor to antecedent. Categories follow Penn Treebank definitions: ADJP, adjective phrase; CC, coordinating conjunction; JJ, adjective; NN, common noun; NNP, proper noun; NP, noun phrase; PRD, predicate function tag; PRP, personal pronoun; S, sentence; SBJ, subject function tag; VBN, past participle verb; VBP, non-3rd person singular present verb; VBZ, 3rd person singular present verb; VP, verb phrase.